https://bugs.kde.org/show_bug.cgi?id=508517
Bug ID: 508517
Summary: Windows dimmed with effects are brighter with software
brightness control
Classification: Plasma
Product: kwin
Version First 6.4.4
Reported In:
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: effects-various
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
SUMMARY
Windows dimmed via either the Dialog Parent or Dim Inactive effects appear
noticeably brighter when lowering the screen brightness below 100% with a
monitor/connection that doesn't expose hardware brightness control to the
system.
STEPS TO REPRODUCE
1. Set screen brightness to 100%
2. Enable Dim Inactive effect and open multiple windows
3. Lower screen brightness by 1% (or more)
OBSERVED RESULT
The inactive windows dimmed by the effect get a little less dimmer despite
everything else getting +1% more dim.
They continue to get dimmer as expected from this point downwards, but with
their baseline brightness is slightly higher.
EXPECTED RESULT
Windows don't go slightly brighter below 99% as opposed to full brightness and
scale brightness uniformly with the rest of the screen.
SOFTWARE/OS VERSIONS
Linux: Arch
KDE Plasma Version: 6.4.4
KDE Frameworks Version: 6.17.0
Qt Version: 6.9.1
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